The following table provides a non-exhaustive list of local variables which are used in the code in a recurring manner.
| C code | Fortran code | Description | 
|---|---|---|
|  cell_id    |  iel  | Cell index | 
|  face_id    |  ifac  | Face index | 
|  tr_dim    |  idimtr  | Indicator for tensor perodicity of rotation | 
|  i_massflux    |  flumas  | Mass flux at interior faces | 
|  b_massflux    |  flumab  | Mass flux at boundary faces | 
|  i_visc    |  viscf  |   at interior faces for the r.h.s. | 
|  b_visc    |  viscb  |   at border faces for the r.h.s. | 
|  rhs    |  smbrp  | Right hand side   | 
Rules have been established for local names denoting fields, depending on their nature. The convention, applying both in Fortran and in C, is as follows:
i at the beginning of the word.The following examples illustrate this convention:
cvar_pr: Values of the variable pressure field defined at the cell centers, at the current time step. 
cvara_pr: Values of the variable pressure field defined at the cell centers, at the previous time step. 
cpro_cp: Values of the property specific heat defined field at the cell centers.